Projects

Sports Lighting Grounds

Schoolyard at Nishiarai Second Elementary SchoolAdachi Ward, Tokyo

Creating a quality light scene with LED lighting scheme mindful of light pollution

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  • LED
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  • Producing output levels equivalent to those of a 1kW metal halide lamp, LEDioc FLOOD AVANT Light Pollution Prevention type class 400 deliver uniform illuminance levels across the ground whilst also minimizing light spillage into the surrounding area.

  • Utilizing proprietary light control to suppress upward light spillage, LEDioc FLOOD AVANT Light Pollution Prevention type class 400 floodlights efficiently illuminate only the target lighting area.

  • LEDioc FLOOD AVANT Light Pollution Prevention type class 400 floodlights in medium beam and narrow beam models.

  • Wi-CONNECTY wireless control system, which uses a base unit and sub-unit to negate the need to lay (underground) control wires, contributing towards improved workability.

  • Daytime view.

about

Installation date

October, 2024

Location

Opened in 1964 in Adachi Ward, Tokyo, and celebrating its 60th anniversary in 2024, Nishiarai Second Elementary School is a public elementary school steeped in history.

In October 2024 the Adachi Ward authorities carried out renovation works to convert the schoolyard lighting installation to LED, with consideration for the location of the school within a residential area leading to the selection of LEDioc FLOOD AVANT Light Pollution Prevention type class 400 floodlights, which comply across all distribution types with Light Environment Class E1 of the Light Pollution Countermeasures Guidelines formulated by the Ministry of the Environment. The grounds benefit from a comfortable lighting scene through bright, uniform illuminance levels whilst avoiding the light spillage into the sky and surrounding areas which causes light pollution. With a keen focus on glare suppression and minimization, the new scheme utilizes a combination of medium and narrow beam angle luminaires to deliver illuminance levels matching and bettering those of the previous arrangement; by not increasing the number of installed units from the existing arrangement, the new scheme also contributes greatly towards energy savings.

Seeking to encourage a life-long embrace of sporting activities and learning - and also promote the concept of schools that are open to their communities - the facilities of elementary and junior high schools across Adachi Ward are widely made available for the use of residents. Conscious that the facility would be used across a variety of purposes, design illuminance levels were set at 300ℓx to ensure ample brightness, and following the upgrade to LED, the space has indeed become markedly brighter than previously whilst also suppressing light pollution and glare in delivery of a quality visual setting.

Specification

  • LEDioc FLOOD AVANT Light Pollution Prevention type class 400 - 30

  • Wireless Control System Wi-CONNECTY - 1